spell trouble
US /spɛl ˈtrʌb.əl/
UK /spɛl ˈtrʌb.əl/

1.
menimbulkan masalah, menyebabkan kesulitan
to indicate that something bad is likely to happen
:
•
His constant tardiness could spell trouble for his job.
Keterlambatannya yang terus-menerus bisa menimbulkan masalah bagi pekerjaannya.
•
The dark clouds on the horizon spell trouble for our picnic.
Awan gelap di cakrawala menandakan masalah untuk piknik kita.